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the drum having a non-uniform section along its length

the drum having a non-uniform section along its length · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F27B2007/022
Official title	{the drum having a non-uniform section along its length}
Display label	the drum having a non-uniform section along its length
Total patents	4

Year-over-year patent counts classified under this CPC code.

Filing activity appears to be declining based on the most recent years.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.